Clamping device for antifriction-bearings.



Unirse srnr'ns Partnr cerros..

'HENRY HESS,` PHILADELPHIA, PENNSYLVANIA, ASSIGNOR 'IO THE SESS-BRIGHT,

MANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION OF DELAWARE.

.specificati-:n1 of Letters Patent.

Patented Jan. 11, 1916.

Application led November 21, 1910. Serial No. 593,450.

lClamping Devices for Antifriction-Bearings, 'of which the following is a specification, reference being hadtherein to the accompanying drawing.-

This invention relates to mea-ns for securing parts against endwise displacement on shafts, and is designedwith special 'reference to fastening 'of anti-friction bearings on shafts in such manner that the bearing will be securely confined thereon'and prevented from shifting or 11i--ving lengthwise of the shaft.

`The invention consists broadly in 'afbushing adapted to surround the sha-ft and give. support both radially and endwi'se to the a clamping nut adapted to be interlocked with the shaft and interlocked also with the bushing, and arranged to engage the member to he secured, whereby the lattermay be y clamped on the bushing and the parts held on the shaft against displacement. A

In the accompanying drawings: Figure l is a longitudinal sectional elevation showing my improved device applied and clamped to an anti-friction bearing on a shaftf Fig..

2 is a transverse sectional 'elevation on the line a-a. of the preceding figure.

Referring to the drawings: 1 represents a shaft or support; 2 a bushing surrounding the same; 3 the inner casing member of an anti-friction bearing which 'surrounds the bushing and receives radial support therefrom by the circumferential bearing surface 2, and endwise support by the radial shoulder 2* on the end of the bushing; represents a nut which is interlocked with the shaft so as to be held from movement lengthwise, and is interlocked also with the bushing, the nut being provided with an extension 4 adapted to engage the casing member of the bearing and bind the same against the shoulder 2b.

The nut is in the present instance 'in two parts or half sections 1lb-4* connected to` gether by transverse connecting bolts 4 so that it may be conveniently applied to the shaft, the same being interlocked with the shaft by means of inwardly extending ribsA allfon the sections of the nut, adapted when the parts of the nut are applied so as to surround the sha-ft, .to extend in a circumferential groove 5 in the shaft. 'By this means the nut will be held securely against movement lengthwise ofthe shaft. The exten-v sion el bn the. nut is interlockcd with the bushing. by means of interior screw threads 4e on the extension, which threads engage corresponding screw threads 2 on the extended end' of the bushing. Y

In using my improved device, themember to be clamped, in the present instance the innercasing member of an anti-friction bearing, is slipped overthe bushing. andseated against the end shoulder thereon, and the .bushing is .applied over the shaft adjacent f the circumerentialgroove therein. The two parts of ther nut are applied from opposite sides-to Itheshaft so that the interior ribsv .will enter the groove in the shaft, and the A'interiorly threadedeXtension-on the .nut will engage the threaded end of the bushing. .The connecting bolts for'the-two sections of the nut are then screwed upv to draw the parts together fairly tight, and the nut is screwed v up on the bushing; As a result of this ac# tion, the bushing will be drawnv endwise within the nut, and the extension on the latter engaging the side of the casing inember, the latterl will .be clamped and bound Vfirmly between said extension and the end 'thelnecessity of threading the shaft c-r clanipingsidebushings or collars thereon.

In-the foregoing s )ecilcation and accompanying drawings, have described 'and shown my improved clamping device in the form which I prefer to adopt and or the 'los purpose of securing anti-friction bearings to their shafts or supports. It is manifest,

l. In combination With a shaft, a buslr,

ing th'ereon provided With a, supporting surface and with an annular bearing' rib at the end of the supporting Surface, a member supported by the bushing nnd adapted to bind against said bearing rib, and a clamping nut interloclred with the shaft and interlocked also with the bushing, said nut being 'adapted when turned, to shift the bushing endwise and clamp said member between the nut and bearing rib on the bushing.

2. In combination with a shaft provided with a groove, a. bushing on the shaft having a supporting surface and provided with a threaded portion, a member supported by the bushing, and a nut surrounding the shaft and Screwed onto the thrended portion of .the bushing, said nut being formed with a.

rib engaging in the groove in th'e'shaft and adapted when turned to shift the bushing endwise and bind the saidmernber thereon. 3. In combination with a shaft provided with a groove, a' bushing on the shaft having a supporti-ng portion and provided with a shoulder7 and havingr also a threaded portion, a member supported by the bushing and adapted to bear against said shoulder,

.and a nut provided with a rib engaging in the groove in the shaft, and having a threaded extension adapted to be screwed von the threaded portion of the bushing and to en- ,enge saidmember.

4. In combination u 1th a shaft,n bushing 'bushing and adapted to bear against the member surrounding and supported bysaid shoulderthereon, and a clamping device in-f;

terlocked with the shaft in such manner ns to be held against endwise motion relative to'y the shaft, said clamping device being operatively connected with the bushing and being adapted, when turned, .to shiftthe bushingI endivise und also to engage said member in clamping the Same against the bearing shoulder on the bushing.

In combination with n Shaft, a bushing thereon provided with a supporting surf-nce and with a bearing;r shoulder at the end olsaid surface, projectingr laterally therefrom, :i member supported by the bushing,r and adapted to bear at its end against the bear-vi ing shoulder, and a. nut on the shaft engaging the bushing -and acting When turned tol shift .the 'bushing endwise on the shaft and bind said shoulder forcibly against said member endwise.

6. In combination with a shaft, a bushing' thereon having a supporting portion and provided with an annular bearing shoulder at the end of the supporting portion, a member supported by the bushing and adapted to bear against said shoulder, andan an nular member surrounding and interloeked -xvith the shaft and coperating with the@` bushing when turned inl shifting the same endwise on the shaft to cause its shoulder to bind against the supported member. v

In testimony Whereofl have afiixed mv signature in presence of two Witnesses.

HENRY nnss.

Titnesses NETTIE HAHN, THEO. H. MCALLA. 

